Abstract

miR-126 has been identified both as a tumor suppressor and an oncogene in different types of cancer. The aim of this study was to investigate the prognostic impact of miR-126-expression in colon cancer patients. Tumor tissue from 452 patients operated for stage I–III colon cancer was retrospectively collected and tissue microarrays were constructed. miR-126 expression was evaluated by in situ hybridization and analyzed using digital pathology. To isolate the compartment specific contribution of miR-126, tumor and adjacent tumor stroma were considered separately. In univariate analyses, high expression of miR-126 in tumor and stroma was related to increased disease-specific survival (p < 0.001 and p = 0.005, respectively). In multivariate analyses, high miR-126 expression in tumor remained a significant independent predictor of improved disease-specific survival (HR = 0.42, CI 0.23–0.75, p = 0.004). Within different TNM-stages there was a tendency towards the same results, but with statistically significant results in stage II only (p = 0.007). High expression of miR-126 is an independent positive prognostic factor in stage I–III colon cancer. This finding may be used to identify patients in need of adjuvant chemotherapy.

Details

Title
High expression of microRNA-126 relates to favorable prognosis for colon cancer patients
Author
Selven Hallgeir 1 ; Rasmussen, Busund Lill-Tove 2 ; Andersen Sigve 1 ; Bremnes, Roy M 1 ; Karsten, Kilvær Thomas 1 

 University Hospital of North Norway, Department of Oncology, Tromsö, Norway (GRID:grid.412244.5) (ISNI:0000 0004 4689 5540); UiT The Arctic University of Norway, Department of Clinical Medicine, Tromsö, Norway (GRID:grid.10919.30) (ISNI:0000000122595234) 
 UiT The Arctic University of Norway, Department of Medical Biology, Tromsö, Norway (GRID:grid.10919.30) (ISNI:0000000122595234); University Hospital of North Norway, Department of Clinical Pathology, Tromsö, Norway (GRID:grid.412244.5) (ISNI:0000 0004 4689 5540) 
Publication year
2021
Publication date
2021
Publisher
Nature Publishing Group
e-ISSN
20452322
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
2522237402
Copyright
© The Author(s) 2021. This work is published under http://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.